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FR188Deep Groove Ball BearingsShielded

SFR188zz

d 6.35 × D 12.7 × B 4.762 mm

The SFR188zz is a deep groove ball bearing with bore 6.35mm, outer diameter 12.7mm, and width 4.762mm rated for dynamic load 1.4 kN.

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NOMINAL DIMENSION DRAWINGD = 12.7 mmd = 6.35 mmB = 4.762 mmNLHB BEARINGSSFR188zz6.35 × 12.7 × 4.762 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
SFR188zz · 6.35x12.7x4.762 mm

📋 Technical Specifications

Bore (d)
6.35mm
Outer Dia. (D)
12.7mm
Width (B)
4.762mm
Dynamic Load (Cr)
1.38 kN(1379 N)
Static Load (C0r)
0.32 kN(320 N)
Reference Speed
36000rpm
Bearing typeDeep Groove Ball Bearings
SeriesFR188
Seal typeShielded
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Measurement systemInch (imperial). Metric values converted at 25.4 mm/in; inch values in brackets.

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)6.35 (0.25")
Outer diameter (D)12.7 (0.5")
Width (B)4.762 (0.1875")

Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

📑 Drawings & 3D Model

SFR188zz bearing dimension drawing, 6.35 x 12.7 x 4.762 mm
SFR188zz dimension drawing: bore d 6.35 mm × outer diameter D 12.7 mm × width B 4.762 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically. Flange Ø Df 13.894 mm, flange width Bf 1.143 mm.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.

⚡ Source-Data Reference Speed

Catalog reference
36,000 rpm

Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.

⇄ Same-size Bearings & Reference Options

The models below share the 6.35x12.7x4.762 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.

ModelRelationshipSeriesSealAction
FR188Same boundary dimensions — verify fit/loadMR Miniature SeriesSealedQuote →
FRW188zzSame boundary dimensions — verify fit/loadFRW188ShieldedQuote →
SFR188 2rsConfiguration variantFR188SealedQuote →
SFRW188zzSame boundary dimensions — verify fit/loadFRW188ShieldedQuote →

🔄 Related Models

Same bearing family or similar dimensions.

Similar size — reference only, verify all interfaces
FRW188
6.35x12.7x3.175 mm
Flanged Thin-Section Bearings
B -1.6mm
SFR188
6.35x12.7x3.175 mm
FR188
B -1.6mm
SFRW188
6.35x12.7x3.175 mm
FRW188
B -1.6mm

⚙ Typical Applications

Electric motors
Fans and blowers
Pumps
Household appliances
Power tools
Office equipment
General machinery

Why choose NLHB?

NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.

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4,300+
Models
15+
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RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of SFR188zz?
The SFR188zz bearing has bore (d) = 6.35 mm, outer diameter (D) = 12.7 mm, and width (B) = 4.762 mm.
Is there a SFR188zz drawing or CAD file?
Yes. The SFR188zz dimension drawing (PDF) is free to download on this page. DXF and 3D STEP files are sent on request: tell us the model and your application.
What is the load rating of SFR188zz?
Dynamic load rating (Cr) = 1.38 kN (1379 N), static load rating (C0r) = 0.32 kN.
What tolerance class is the SFR188zz?
The standard tolerance class of the SFR188zz is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does SFR188zz belong to?
The SFR188zz belongs to the FR188 within the Deep Groove Ball Bearings category.
Can NLHB supply SFR188zz equivalents from other brands?
Depending on the model and order requirements, NLHB may manufacture in-house or source through qualified partner factories. Interchange and supply route are confirmed against your specification before quotation. All trademarks belong to their respective owners.
How do I order SFR188zz from NLHB?
Click "Request Quote" and send us your quantity, application, and required specifications. We review the specification, supply route, lead time, and pricing before issuing a quotation. Response time depends on specification complexity.
What materials are available for SFR188zz?
Material grade is confirmed per inquiry. Availability depends on the model, quantity, application, and whether the order is manufactured in-house or sourced through a qualified partner factory. Material certificates or inspection documents are confirmed before quotation when required.

Get a quote for SFR188zz

Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.

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